Monitor arm



FIG. 1 is a front perspective view of a monitor arm showing the newdesign;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front view thereof;

FIG. 8 is a back view thereof; and,

FIG. 9 is a front perspective view thereof in an environment.

The broken lines depict portions of the article that form no part of theclaimed design.

CLAIM The ornamental design for a monitor arm, as shown and described.